Home / 858,413.10-1,287,619.65-503,597.10

Finding the Fourth Proportional to 858,413.10, 1,287,619.65 and 503,597.10

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Solution

The fourth proportional to 858,413.10, 1,287,619.65 and 503,597.10 is: 755,395.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,413.10 : 1,287,619.65 = 503,597.10 : x
  2. Step 2: Convert to fraction form
    858,413.10/1,287,619.65 = 503,597.10/x
  3. Step 3: Cross multiply
    858,413.10x = 1,287,619.65 × 503,597.10
  4. Step 4: Simplify right side
    858,413.10x = 648,441,521,643.02
  5. Step 5: Solve for x
    x = 648,441,521,643.02/858,413.10
  6. Step 6: Final answer
    x = 755,395.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.